ConversationFragment.java

   1package eu.siacs.conversations.ui;
   2
   3import android.app.Activity;
   4import android.app.AlertDialog;
   5import android.app.Fragment;
   6import android.app.PendingIntent;
   7import android.content.ActivityNotFoundException;
   8import android.content.Context;
   9import android.content.DialogInterface;
  10import android.content.Intent;
  11import android.content.IntentSender.SendIntentException;
  12import android.os.Bundle;
  13import android.os.Handler;
  14import android.support.v13.view.inputmethod.InputConnectionCompat;
  15import android.support.v13.view.inputmethod.InputContentInfoCompat;
  16import android.text.Editable;
  17import android.text.InputType;
  18import android.util.Log;
  19import android.util.Pair;
  20import android.view.ContextMenu;
  21import android.view.ContextMenu.ContextMenuInfo;
  22import android.view.Gravity;
  23import android.view.KeyEvent;
  24import android.view.LayoutInflater;
  25import android.view.MenuItem;
  26import android.view.View;
  27import android.view.View.OnClickListener;
  28import android.view.ViewGroup;
  29import android.view.inputmethod.EditorInfo;
  30import android.view.inputmethod.InputMethodManager;
  31import android.widget.AbsListView;
  32import android.widget.AbsListView.OnScrollListener;
  33import android.widget.AdapterView;
  34import android.widget.AdapterView.AdapterContextMenuInfo;
  35import android.widget.ImageButton;
  36import android.widget.ListView;
  37import android.widget.PopupMenu;
  38import android.widget.RelativeLayout;
  39import android.widget.TextView;
  40import android.widget.TextView.OnEditorActionListener;
  41import android.widget.Toast;
  42
  43import net.java.otr4j.session.SessionStatus;
  44
  45import java.util.ArrayList;
  46import java.util.Collections;
  47import java.util.List;
  48import java.util.UUID;
  49import java.util.concurrent.atomic.AtomicBoolean;
  50
  51import eu.siacs.conversations.Config;
  52import eu.siacs.conversations.R;
  53import eu.siacs.conversations.entities.Account;
  54import eu.siacs.conversations.entities.Blockable;
  55import eu.siacs.conversations.entities.Contact;
  56import eu.siacs.conversations.entities.Conversation;
  57import eu.siacs.conversations.entities.DownloadableFile;
  58import eu.siacs.conversations.entities.Message;
  59import eu.siacs.conversations.entities.MucOptions;
  60import eu.siacs.conversations.entities.Presence;
  61import eu.siacs.conversations.entities.Transferable;
  62import eu.siacs.conversations.entities.TransferablePlaceholder;
  63import eu.siacs.conversations.http.HttpDownloadConnection;
  64import eu.siacs.conversations.persistance.FileBackend;
  65import eu.siacs.conversations.services.MessageArchiveService;
  66import eu.siacs.conversations.services.XmppConnectionService;
  67import eu.siacs.conversations.ui.XmppActivity.OnPresenceSelected;
  68import eu.siacs.conversations.ui.XmppActivity.OnValueEdited;
  69import eu.siacs.conversations.ui.adapter.MessageAdapter;
  70import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureClicked;
  71import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureLongClicked;
  72import eu.siacs.conversations.ui.widget.ListSelectionManager;
  73import eu.siacs.conversations.utils.GeoHelper;
  74import eu.siacs.conversations.utils.UIHelper;
  75import eu.siacs.conversations.xmpp.XmppConnection;
  76import eu.siacs.conversations.xmpp.chatstate.ChatState;
  77import eu.siacs.conversations.xmpp.jid.Jid;
  78
  79public class ConversationFragment extends Fragment implements EditMessage.KeyboardListener {
  80
  81	protected Conversation conversation;
  82	private OnClickListener leaveMuc = new OnClickListener() {
  83
  84		@Override
  85		public void onClick(View v) {
  86			activity.endConversation(conversation);
  87		}
  88	};
  89	private OnClickListener joinMuc = new OnClickListener() {
  90
  91		@Override
  92		public void onClick(View v) {
  93			activity.xmppConnectionService.joinMuc(conversation);
  94		}
  95	};
  96	private OnClickListener enterPassword = new OnClickListener() {
  97
  98		@Override
  99		public void onClick(View v) {
 100			MucOptions muc = conversation.getMucOptions();
 101			String password = muc.getPassword();
 102			if (password == null) {
 103				password = "";
 104			}
 105			activity.quickPasswordEdit(password, new OnValueEdited() {
 106
 107				@Override
 108				public void onValueEdited(String value) {
 109					activity.xmppConnectionService.providePasswordForMuc(
 110							conversation, value);
 111				}
 112			});
 113		}
 114	};
 115	protected ListView messagesView;
 116	final protected List<Message> messageList = new ArrayList<>();
 117	protected MessageAdapter messageListAdapter;
 118	private EditMessage mEditMessage;
 119	private ImageButton mSendButton;
 120	private RelativeLayout snackbar;
 121	private TextView snackbarMessage;
 122	private TextView snackbarAction;
 123	private Toast messageLoaderToast;
 124
 125	private OnScrollListener mOnScrollListener = new OnScrollListener() {
 126
 127		@Override
 128		public void onScrollStateChanged(AbsListView view, int scrollState) {
 129			// TODO Auto-generated method stub
 130
 131		}
 132
 133		@Override
 134		public void onScroll(AbsListView view, int firstVisibleItem,
 135							 int visibleItemCount, int totalItemCount) {
 136			synchronized (ConversationFragment.this.messageList) {
 137				if (firstVisibleItem < 5 && conversation != null && conversation.messagesLoaded.compareAndSet(true,false) && messageList.size() > 0) {
 138					long timestamp;
 139					if (messageList.get(0).getType() == Message.TYPE_STATUS && messageList.size() >= 2) {
 140						timestamp = messageList.get(1).getTimeSent();
 141					} else {
 142						timestamp = messageList.get(0).getTimeSent();
 143					}
 144					activity.xmppConnectionService.loadMoreMessages(conversation, timestamp, new XmppConnectionService.OnMoreMessagesLoaded() {
 145						@Override
 146						public void onMoreMessagesLoaded(final int c, final Conversation conversation) {
 147							if (ConversationFragment.this.conversation != conversation) {
 148								conversation.messagesLoaded.set(true);
 149								return;
 150							}
 151							activity.runOnUiThread(new Runnable() {
 152								@Override
 153								public void run() {
 154									final int oldPosition = messagesView.getFirstVisiblePosition();
 155									final Message message;
 156									if (oldPosition < messageList.size()) {
 157										message = messageList.get(oldPosition);
 158									}  else {
 159										message = null;
 160									}
 161									String uuid = message != null ? message.getUuid() : null;
 162									View v = messagesView.getChildAt(0);
 163									final int pxOffset = (v == null) ? 0 : v.getTop();
 164									ConversationFragment.this.conversation.populateWithMessages(ConversationFragment.this.messageList);
 165									try {
 166										updateStatusMessages();
 167									} catch (IllegalStateException e) {
 168										Log.d(Config.LOGTAG,"caught illegal state exception while updating status messages");
 169									}
 170									messageListAdapter.notifyDataSetChanged();
 171									int pos = Math.max(getIndexOf(uuid,messageList),0);
 172									messagesView.setSelectionFromTop(pos, pxOffset);
 173									if (messageLoaderToast != null) {
 174										messageLoaderToast.cancel();
 175									}
 176									conversation.messagesLoaded.set(true);
 177								}
 178							});
 179						}
 180
 181						@Override
 182						public void informUser(final int resId) {
 183
 184							activity.runOnUiThread(new Runnable() {
 185								@Override
 186								public void run() {
 187									if (messageLoaderToast != null) {
 188										messageLoaderToast.cancel();
 189									}
 190									if (ConversationFragment.this.conversation != conversation) {
 191										return;
 192									}
 193									messageLoaderToast = Toast.makeText(activity, resId, Toast.LENGTH_LONG);
 194									messageLoaderToast.show();
 195								}
 196							});
 197
 198						}
 199					});
 200
 201				}
 202			}
 203		}
 204	};
 205
 206	private int getIndexOf(String uuid, List<Message> messages) {
 207		if (uuid == null) {
 208			return messages.size() - 1;
 209		}
 210		for(int i = 0; i < messages.size(); ++i) {
 211			if (uuid.equals(messages.get(i).getUuid())) {
 212				return i;
 213			} else {
 214				Message next = messages.get(i);
 215				while(next != null && next.wasMergedIntoPrevious()) {
 216					if (uuid.equals(next.getUuid())) {
 217						return i;
 218					}
 219					next = next.next();
 220				}
 221
 222			}
 223		}
 224		return -1;
 225	}
 226
 227	public Pair<Integer,Integer> getScrollPosition() {
 228		if (this.messagesView.getCount() == 0 ||
 229				this.messagesView.getLastVisiblePosition() == this.messagesView.getCount() - 1) {
 230			return null;
 231		} else {
 232			final int pos = messagesView.getFirstVisiblePosition();
 233			final View view = messagesView.getChildAt(0);
 234			if (view == null) {
 235				return null;
 236			} else {
 237				return new Pair<>(pos, view.getTop());
 238			}
 239		}
 240	}
 241
 242	public void setScrollPosition(Pair<Integer,Integer> scrollPosition) {
 243		if (scrollPosition != null) {
 244			this.messagesView.setSelectionFromTop(scrollPosition.first, scrollPosition.second);
 245		}
 246	}
 247
 248	protected OnClickListener clickToDecryptListener = new OnClickListener() {
 249
 250		@Override
 251		public void onClick(View v) {
 252			PendingIntent pendingIntent = conversation.getAccount().getPgpDecryptionService().getPendingIntent();
 253			if (pendingIntent != null) {
 254				try {
 255					activity.startIntentSenderForResult(pendingIntent.getIntentSender(),
 256                            ConversationActivity.REQUEST_DECRYPT_PGP,
 257                            null,
 258                            0,
 259                            0,
 260                            0);
 261				} catch (SendIntentException e) {
 262					Toast.makeText(activity,R.string.unable_to_connect_to_keychain, Toast.LENGTH_SHORT).show();
 263					conversation.getAccount().getPgpDecryptionService().continueDecryption(true);
 264				}
 265			}
 266			updateSnackBar(conversation);
 267		}
 268	};
 269	protected OnClickListener clickToVerify = new OnClickListener() {
 270
 271		@Override
 272		public void onClick(View v) {
 273			activity.verifyOtrSessionDialog(conversation, v);
 274		}
 275	};
 276	private OnEditorActionListener mEditorActionListener = new OnEditorActionListener() {
 277
 278		@Override
 279		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 280			if (actionId == EditorInfo.IME_ACTION_SEND) {
 281				InputMethodManager imm = (InputMethodManager) v.getContext()
 282						.getSystemService(Context.INPUT_METHOD_SERVICE);
 283				if (imm.isFullscreenMode()) {
 284					imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
 285				}
 286				sendMessage();
 287				return true;
 288			} else {
 289				return false;
 290			}
 291		}
 292	};
 293	private EditMessage.OnCommitContentListener mEditorContentListener = new EditMessage.OnCommitContentListener() {
 294		@Override
 295		public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] contentMimeTypes) {
 296			// try to get permission to read the image, if applicable
 297			if ((flags & InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION) != 0) {
 298				try {
 299					inputContentInfo.requestPermission();
 300				} catch (Exception e) {
 301					Log.e(Config.LOGTAG, "InputContentInfoCompat#requestPermission() failed.", e);
 302					Toast.makeText(
 303							activity,
 304							activity.getString(R.string.no_permission_to_access_x, inputContentInfo.getDescription()),
 305							Toast.LENGTH_LONG
 306					).show();
 307					return false;
 308				}
 309			}
 310
 311			// send the image
 312			activity.attachImageToConversation(inputContentInfo.getContentUri());
 313
 314			// TODO: revoke permissions?
 315			// since uploading an image is async its tough to wire a callback to when
 316			// the image has finished uploading.
 317			// According to the docs: "calling IC#releasePermission() is just to be a
 318			// good citizen. Even if we failed to call that method, the system would eventually revoke
 319			// the permission sometime after inputContentInfo object gets garbage-collected."
 320			// See: https://developer.android.com/samples/CommitContentSampleApp/src/com.example.android.commitcontent.app/MainActivity.html#l164
 321			return true;
 322		}
 323	};
 324	private OnClickListener mSendButtonListener = new OnClickListener() {
 325
 326		@Override
 327		public void onClick(View v) {
 328			Object tag = v.getTag();
 329			if (tag instanceof SendButtonAction) {
 330				SendButtonAction action = (SendButtonAction) tag;
 331				switch (action) {
 332					case TAKE_PHOTO:
 333						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_TAKE_PHOTO);
 334						break;
 335					case SEND_LOCATION:
 336						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_LOCATION);
 337						break;
 338					case RECORD_VOICE:
 339						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_RECORD_VOICE);
 340						break;
 341					case CHOOSE_PICTURE:
 342						activity.attachFile(ConversationActivity.ATTACHMENT_CHOICE_CHOOSE_IMAGE);
 343						break;
 344					case CANCEL:
 345						if (conversation != null) {
 346							if(conversation.setCorrectingMessage(null)) {
 347								mEditMessage.setText("");
 348								mEditMessage.append(conversation.getDraftMessage());
 349								conversation.setDraftMessage(null);
 350							} else if (conversation.getMode() == Conversation.MODE_MULTI) {
 351								conversation.setNextCounterpart(null);
 352							}
 353							updateChatMsgHint();
 354							updateSendButton();
 355						}
 356						break;
 357					default:
 358						sendMessage();
 359				}
 360			} else {
 361				sendMessage();
 362			}
 363		}
 364	};
 365	private OnClickListener clickToMuc = new OnClickListener() {
 366
 367		@Override
 368		public void onClick(View v) {
 369			Intent intent = new Intent(getActivity(), ConferenceDetailsActivity.class);
 370			intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
 371			intent.putExtra("uuid", conversation.getUuid());
 372			startActivity(intent);
 373		}
 374	};
 375	private ConversationActivity activity;
 376	private Message selectedMessage;
 377
 378	private void sendMessage() {
 379		final String body = mEditMessage.getText().toString();
 380		if (body.length() == 0 || this.conversation == null) {
 381			return;
 382		}
 383		final Message message;
 384		if (conversation.getCorrectingMessage() == null) {
 385			message = new Message(conversation, body, conversation.getNextEncryption());
 386			if (conversation.getMode() == Conversation.MODE_MULTI) {
 387				if (conversation.getNextCounterpart() != null) {
 388					message.setCounterpart(conversation.getNextCounterpart());
 389					message.setType(Message.TYPE_PRIVATE);
 390				}
 391			}
 392		} else {
 393			message = conversation.getCorrectingMessage();
 394			message.setBody(body);
 395			message.setEdited(message.getUuid());
 396			message.setUuid(UUID.randomUUID().toString());
 397		}
 398		switch (conversation.getNextEncryption()) {
 399			case Message.ENCRYPTION_OTR:
 400				sendOtrMessage(message);
 401				break;
 402			case Message.ENCRYPTION_PGP:
 403				sendPgpMessage(message);
 404				break;
 405			case Message.ENCRYPTION_AXOLOTL:
 406				if(!activity.trustKeysIfNeeded(ConversationActivity.REQUEST_TRUST_KEYS_TEXT)) {
 407					sendAxolotlMessage(message);
 408				}
 409				break;
 410			default:
 411				sendPlainTextMessage(message);
 412		}
 413	}
 414
 415	public void updateChatMsgHint() {
 416		final boolean multi = conversation.getMode() == Conversation.MODE_MULTI;
 417		if (conversation.getCorrectingMessage() != null) {
 418			this.mEditMessage.setHint(R.string.send_corrected_message);
 419		} else if (multi && conversation.getNextCounterpart() != null) {
 420			this.mEditMessage.setHint(getString(
 421					R.string.send_private_message_to,
 422					conversation.getNextCounterpart().getResourcepart()));
 423		} else if (multi && !conversation.getMucOptions().participating()) {
 424			this.mEditMessage.setHint(R.string.you_are_not_participating);
 425		} else {
 426			this.mEditMessage.setHint(UIHelper.getMessageHint(activity,conversation));
 427			getActivity().invalidateOptionsMenu();
 428		}
 429	}
 430
 431	public void setupIme() {
 432		if (activity == null) {
 433			return;
 434		} else if (activity.usingEnterKey() && activity.enterIsSend()) {
 435			mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_FLAG_MULTI_LINE));
 436			mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
 437		} else if (activity.usingEnterKey()) {
 438			mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_FLAG_MULTI_LINE);
 439			mEditMessage.setInputType(mEditMessage.getInputType() & (~InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE));
 440		} else {
 441			mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_FLAG_MULTI_LINE);
 442			mEditMessage.setInputType(mEditMessage.getInputType() | InputType.TYPE_TEXT_VARIATION_SHORT_MESSAGE);
 443		}
 444	}
 445
 446	@Override
 447	public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 448		final View view = inflater.inflate(R.layout.fragment_conversation, container, false);
 449		view.setOnClickListener(null);
 450
 451		String[] allImagesMimeType = {"image/*"};
 452		mEditMessage = (EditMessage) view.findViewById(R.id.textinput);
 453		mEditMessage.setOnClickListener(new OnClickListener() {
 454
 455			@Override
 456			public void onClick(View v) {
 457				if (activity != null) {
 458					activity.hideConversationsOverview();
 459				}
 460			}
 461		});
 462		mEditMessage.setOnEditorActionListener(mEditorActionListener);
 463		mEditMessage.setRichContentListener(allImagesMimeType, mEditorContentListener);
 464
 465		mSendButton = (ImageButton) view.findViewById(R.id.textSendButton);
 466		mSendButton.setOnClickListener(this.mSendButtonListener);
 467
 468		snackbar = (RelativeLayout) view.findViewById(R.id.snackbar);
 469		snackbarMessage = (TextView) view.findViewById(R.id.snackbar_message);
 470		snackbarAction = (TextView) view.findViewById(R.id.snackbar_action);
 471
 472		messagesView = (ListView) view.findViewById(R.id.messages_view);
 473		messagesView.setOnScrollListener(mOnScrollListener);
 474		messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
 475		messageListAdapter = new MessageAdapter((ConversationActivity) getActivity(), this.messageList);
 476		messageListAdapter.setOnContactPictureClicked(new OnContactPictureClicked() {
 477
 478			@Override
 479			public void onContactPictureClicked(Message message) {
 480				if (message.getStatus() <= Message.STATUS_RECEIVED) {
 481					if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 482						Jid user = message.getCounterpart();
 483						if (user != null && !user.isBareJid()) {
 484							if (!message.getConversation().getMucOptions().isUserInRoom(user)) {
 485								Toast.makeText(activity,activity.getString(R.string.user_has_left_conference,user.getResourcepart()),Toast.LENGTH_SHORT).show();
 486							}
 487							highlightInConference(user.getResourcepart());
 488						}
 489					} else {
 490						if (!message.getContact().isSelf()) {
 491							String fingerprint;
 492							if (message.getEncryption() == Message.ENCRYPTION_PGP
 493									|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 494								fingerprint = "pgp";
 495							} else {
 496								fingerprint = message.getFingerprint();
 497							}
 498							activity.switchToContactDetails(message.getContact(), fingerprint);
 499						}
 500					}
 501				} else {
 502					Account account = message.getConversation().getAccount();
 503					Intent intent;
 504					if (activity.manuallyChangePresence()) {
 505						intent = new Intent(activity, SetPresenceActivity.class);
 506						intent.putExtra(SetPresenceActivity.EXTRA_ACCOUNT, account.getJid().toBareJid().toString());
 507					} else {
 508						intent = new Intent(activity, EditAccountActivity.class);
 509						intent.putExtra("jid", account.getJid().toBareJid().toString());
 510						String fingerprint;
 511						if (message.getEncryption() == Message.ENCRYPTION_PGP
 512								|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 513							fingerprint = "pgp";
 514						} else {
 515							fingerprint = message.getFingerprint();
 516						}
 517						intent.putExtra("fingerprint", fingerprint);
 518					}
 519					startActivity(intent);
 520				}
 521			}
 522		});
 523		messageListAdapter
 524				.setOnContactPictureLongClicked(new OnContactPictureLongClicked() {
 525
 526					@Override
 527					public void onContactPictureLongClicked(Message message) {
 528						if (message.getStatus() <= Message.STATUS_RECEIVED) {
 529							if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 530								Jid user = message.getCounterpart();
 531								if (user != null && !user.isBareJid()) {
 532									if (message.getConversation().getMucOptions().isUserInRoom(user)) {
 533										privateMessageWith(user);
 534									} else {
 535										Toast.makeText(activity, activity.getString(R.string.user_has_left_conference, user.getResourcepart()), Toast.LENGTH_SHORT).show();
 536									}
 537								}
 538							}
 539						} else {
 540							activity.showQrCode();
 541						}
 542					}
 543				});
 544		messageListAdapter.setOnQuoteListener(new MessageAdapter.OnQuoteListener() {
 545
 546			@Override
 547			public void onQuote(String text) {
 548				if (mEditMessage.isEnabled()) {
 549					text = text.replaceAll("(\n *){2,}", "\n").replaceAll("(^|\n)", "$1> ").replaceAll("\n$", "");
 550					Editable editable = mEditMessage.getEditableText();
 551					int position = mEditMessage.getSelectionEnd();
 552					if (position == -1) position = editable.length();
 553					if (position > 0 && editable.charAt(position - 1) != '\n') {
 554						editable.insert(position++, "\n");
 555					}
 556					editable.insert(position, text);
 557					position += text.length();
 558					editable.insert(position++, "\n");
 559					if (position < editable.length() && editable.charAt(position) != '\n') {
 560						editable.insert(position, "\n");
 561					}
 562					mEditMessage.setSelection(position);
 563					mEditMessage.requestFocus();
 564					InputMethodManager inputMethodManager = (InputMethodManager) getActivity()
 565							.getSystemService(Context.INPUT_METHOD_SERVICE);
 566					if (inputMethodManager != null) {
 567						inputMethodManager.showSoftInput(mEditMessage, InputMethodManager.SHOW_IMPLICIT);
 568					}
 569				}
 570			}
 571		});
 572		messagesView.setAdapter(messageListAdapter);
 573
 574		registerForContextMenu(messagesView);
 575
 576		return view;
 577	}
 578
 579	@Override
 580	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 581		synchronized (this.messageList) {
 582			super.onCreateContextMenu(menu, v, menuInfo);
 583			AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 584			this.selectedMessage = this.messageList.get(acmi.position);
 585			populateContextMenu(menu);
 586		}
 587	}
 588
 589	private void populateContextMenu(ContextMenu menu) {
 590		final Message m = this.selectedMessage;
 591		final Transferable t = m.getTransferable();
 592		Message relevantForCorrection = m;
 593		while(relevantForCorrection.mergeable(relevantForCorrection.next())) {
 594			relevantForCorrection = relevantForCorrection.next();
 595		}
 596		if (m.getType() != Message.TYPE_STATUS) {
 597			final boolean treatAsFile = m.getType() != Message.TYPE_TEXT
 598					&& m.getType() != Message.TYPE_PRIVATE
 599					&& t == null;
 600			activity.getMenuInflater().inflate(R.menu.message_context, menu);
 601			menu.setHeaderTitle(R.string.message_options);
 602			MenuItem copyText = menu.findItem(R.id.copy_text);
 603			MenuItem selectText = menu.findItem(R.id.select_text);
 604			MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
 605			MenuItem correctMessage = menu.findItem(R.id.correct_message);
 606			MenuItem shareWith = menu.findItem(R.id.share_with);
 607			MenuItem sendAgain = menu.findItem(R.id.send_again);
 608			MenuItem copyUrl = menu.findItem(R.id.copy_url);
 609			MenuItem cancelTransmission = menu.findItem(R.id.cancel_transmission);
 610			MenuItem deleteFile = menu.findItem(R.id.delete_file);
 611			MenuItem showErrorMessage = menu.findItem(R.id.show_error_message);
 612			if (!treatAsFile
 613					&& !GeoHelper.isGeoUri(m.getBody())
 614					&& !m.treatAsDownloadable()) {
 615				copyText.setVisible(true);
 616				selectText.setVisible(ListSelectionManager.isSupported());
 617			}
 618			if (m.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
 619				retryDecryption.setVisible(true);
 620			}
 621			if (relevantForCorrection.getType() == Message.TYPE_TEXT
 622					&& relevantForCorrection.isLastCorrectableMessage()
 623					&& (m.getConversation().getMucOptions().nonanonymous() || m.getConversation().getMode() == Conversation.MODE_SINGLE)) {
 624				correctMessage.setVisible(true);
 625			}
 626			if (treatAsFile || (GeoHelper.isGeoUri(m.getBody()))) {
 627				shareWith.setVisible(true);
 628			}
 629			if (m.getStatus() == Message.STATUS_SEND_FAILED) {
 630				sendAgain.setVisible(true);
 631			}
 632			if (m.hasFileOnRemoteHost()
 633					|| GeoHelper.isGeoUri(m.getBody())
 634					|| m.treatAsDownloadable()
 635					|| (t != null && t instanceof HttpDownloadConnection)) {
 636				copyUrl.setVisible(true);
 637			}
 638			boolean waitingOfferedSending = m.getStatus() == Message.STATUS_WAITING
 639					|| m.getStatus() == Message.STATUS_UNSEND
 640					|| m.getStatus() == Message.STATUS_OFFERED;
 641			if ((t != null && !(t instanceof TransferablePlaceholder)) || waitingOfferedSending && m.needsUploading()) {
 642				cancelTransmission.setVisible(true);
 643			}
 644			if (treatAsFile) {
 645				String path = m.getRelativeFilePath();
 646				if (path == null || !path.startsWith("/")) {
 647					deleteFile.setVisible(true);
 648					deleteFile.setTitle(activity.getString(R.string.delete_x_file, UIHelper.getFileDescriptionString(activity, m)));
 649				}
 650			}
 651			if (m.getStatus() == Message.STATUS_SEND_FAILED && m.getErrorMessage() != null) {
 652				showErrorMessage.setVisible(true);
 653			}
 654		}
 655	}
 656
 657	@Override
 658	public boolean onContextItemSelected(MenuItem item) {
 659		switch (item.getItemId()) {
 660			case R.id.share_with:
 661				shareWith(selectedMessage);
 662				return true;
 663			case R.id.copy_text:
 664				copyText(selectedMessage);
 665				return true;
 666			case R.id.select_text:
 667				selectText(selectedMessage);
 668				return true;
 669			case R.id.correct_message:
 670				correctMessage(selectedMessage);
 671				return true;
 672			case R.id.send_again:
 673				resendMessage(selectedMessage);
 674				return true;
 675			case R.id.copy_url:
 676				copyUrl(selectedMessage);
 677				return true;
 678			case R.id.cancel_transmission:
 679				cancelTransmission(selectedMessage);
 680				return true;
 681			case R.id.retry_decryption:
 682				retryDecryption(selectedMessage);
 683				return true;
 684			case R.id.delete_file:
 685				deleteFile(selectedMessage);
 686				return true;
 687			case R.id.show_error_message:
 688				showErrorMessage(selectedMessage);
 689				return true;
 690			default:
 691				return super.onContextItemSelected(item);
 692		}
 693	}
 694
 695	private void showErrorMessage(final Message message) {
 696		AlertDialog.Builder builder = new AlertDialog.Builder(activity);
 697		builder.setTitle(R.string.error_message);
 698		builder.setMessage(message.getErrorMessage());
 699		builder.setPositiveButton(R.string.confirm,null);
 700		builder.create().show();
 701	}
 702
 703	private void shareWith(Message message) {
 704		Intent shareIntent = new Intent();
 705		shareIntent.setAction(Intent.ACTION_SEND);
 706		if (GeoHelper.isGeoUri(message.getBody())) {
 707			shareIntent.putExtra(Intent.EXTRA_TEXT, message.getBody());
 708			shareIntent.setType("text/plain");
 709		} else {
 710			final DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 711			try {
 712				shareIntent.putExtra(Intent.EXTRA_STREAM, FileBackend.getUriForFile(activity, file));
 713			} catch (SecurityException e) {
 714				Toast.makeText(activity, activity.getString(R.string.no_permission_to_access_x, file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
 715				return;
 716			}
 717			shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 718			String mime = message.getMimeType();
 719			if (mime == null) {
 720				mime = "*/*";
 721			}
 722			shareIntent.setType(mime);
 723		}
 724		try {
 725			activity.startActivity(Intent.createChooser(shareIntent, getText(R.string.share_with)));
 726		} catch (ActivityNotFoundException e) {
 727			//This should happen only on faulty androids because normally chooser is always available
 728			Toast.makeText(activity,R.string.no_application_found_to_open_file,Toast.LENGTH_SHORT).show();
 729		}
 730	}
 731
 732	private void copyText(Message message) {
 733		if (activity.copyTextToClipboard(message.getMergedBody().toString(),
 734				R.string.message_text)) {
 735			Toast.makeText(activity, R.string.message_copied_to_clipboard,
 736					Toast.LENGTH_SHORT).show();
 737		}
 738	}
 739
 740	private void selectText(Message message) {
 741		final int index;
 742		synchronized (this.messageList) {
 743			index = this.messageList.indexOf(message);
 744		}
 745		if (index >= 0) {
 746			final int first = this.messagesView.getFirstVisiblePosition();
 747			final int last = first + this.messagesView.getChildCount();
 748			if (index >= first && index < last)	{
 749				final View view = this.messagesView.getChildAt(index - first);
 750				final TextView messageBody = this.messageListAdapter.getMessageBody(view);
 751				if (messageBody != null) {
 752					ListSelectionManager.startSelection(messageBody);
 753				}
 754			}
 755		}
 756	}
 757
 758	private void deleteFile(Message message) {
 759		if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
 760			message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 761			activity.updateConversationList();
 762			updateMessages();
 763		}
 764	}
 765
 766	private void resendMessage(Message message) {
 767		if (message.getType() == Message.TYPE_FILE || message.getType() == Message.TYPE_IMAGE) {
 768			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
 769			if (!file.exists()) {
 770				Toast.makeText(activity, R.string.file_deleted, Toast.LENGTH_SHORT).show();
 771				message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 772				activity.updateConversationList();
 773				updateMessages();
 774				return;
 775			}
 776		}
 777		activity.xmppConnectionService.resendFailedMessages(message);
 778	}
 779
 780	private void copyUrl(Message message) {
 781		final String url;
 782		final int resId;
 783		if (GeoHelper.isGeoUri(message.getBody())) {
 784			resId = R.string.location;
 785			url = message.getBody();
 786		} else if (message.hasFileOnRemoteHost()) {
 787			resId = R.string.file_url;
 788			url = message.getFileParams().url.toString();
 789		} else {
 790			url = message.getBody().trim();
 791			resId = R.string.file_url;
 792		}
 793		if (activity.copyTextToClipboard(url, resId)) {
 794			Toast.makeText(activity, R.string.url_copied_to_clipboard,
 795					Toast.LENGTH_SHORT).show();
 796		}
 797	}
 798
 799	private void cancelTransmission(Message message) {
 800		Transferable transferable = message.getTransferable();
 801		if (transferable != null) {
 802			transferable.cancel();
 803		}
 804	}
 805
 806	private void retryDecryption(Message message) {
 807		message.setEncryption(Message.ENCRYPTION_PGP);
 808		activity.updateConversationList();
 809		updateMessages();
 810		conversation.getAccount().getPgpDecryptionService().decrypt(message, false);
 811	}
 812
 813	protected void privateMessageWith(final Jid counterpart) {
 814		if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 815			activity.xmppConnectionService.sendChatState(conversation);
 816		}
 817		this.mEditMessage.setText("");
 818		this.conversation.setNextCounterpart(counterpart);
 819		updateChatMsgHint();
 820		updateSendButton();
 821	}
 822
 823	private void correctMessage(Message message) {
 824		while(message.mergeable(message.next())) {
 825			message = message.next();
 826		}
 827		this.conversation.setCorrectingMessage(message);
 828		final Editable editable = mEditMessage.getText();
 829		this.conversation.setDraftMessage(editable.toString());
 830		this.mEditMessage.setText("");
 831		this.mEditMessage.append(message.getBody());
 832
 833	}
 834
 835	protected void highlightInConference(String nick) {
 836		final Editable editable = mEditMessage.getText();
 837		String oldString = editable.toString().trim();
 838		final int pos = mEditMessage.getSelectionStart();
 839		if (oldString.isEmpty() || pos == 0) {
 840			editable.insert(0, nick + ": ");
 841		} else {
 842			final char before = editable.charAt(pos - 1);
 843			final char after = editable.length() > pos ? editable.charAt(pos) : '\0';
 844			if (before == '\n') {
 845				editable.insert(pos, nick + ": ");
 846			} else {
 847				if (pos > 2 && editable.subSequence(pos-2,pos).toString().equals(": ")) {
 848					editable.insert(pos-2,", "+nick);
 849				} else {
 850					editable.insert(pos, (Character.isWhitespace(before) ? "" : " ") + nick + (Character.isWhitespace(after) ? "" : " "));
 851					if (Character.isWhitespace(after)) {
 852						mEditMessage.setSelection(mEditMessage.getSelectionStart() + 1);
 853					}
 854				}
 855			}
 856		}
 857	}
 858
 859	@Override
 860	public void onStop() {
 861		super.onStop();
 862		if (this.conversation != null) {
 863			final String msg = mEditMessage.getText().toString();
 864			this.conversation.setNextMessage(msg);
 865			updateChatState(this.conversation, msg);
 866		}
 867	}
 868
 869	private void updateChatState(final Conversation conversation, final String msg) {
 870		ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
 871		Account.State status = conversation.getAccount().getStatus();
 872		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
 873			activity.xmppConnectionService.sendChatState(conversation);
 874		}
 875	}
 876
 877	public boolean reInit(Conversation conversation) {
 878		if (conversation == null) {
 879			return false;
 880		}
 881		this.activity = (ConversationActivity) getActivity();
 882		setupIme();
 883		if (this.conversation != null) {
 884			final String msg = mEditMessage.getText().toString();
 885			this.conversation.setNextMessage(msg);
 886			if (this.conversation != conversation) {
 887				updateChatState(this.conversation, msg);
 888			}
 889			this.conversation.trim();
 890		}
 891
 892		this.conversation = conversation;
 893		boolean canWrite = this.conversation.getMode() == Conversation.MODE_SINGLE || this.conversation.getMucOptions().participating();
 894		this.mEditMessage.setEnabled(canWrite);
 895		this.mSendButton.setEnabled(canWrite);
 896		this.mEditMessage.setKeyboardListener(null);
 897		this.mEditMessage.setText("");
 898		this.mEditMessage.append(this.conversation.getNextMessage());
 899		this.mEditMessage.setKeyboardListener(this);
 900		messageListAdapter.updatePreferences();
 901		this.messagesView.setAdapter(messageListAdapter);
 902		updateMessages();
 903		this.conversation.messagesLoaded.set(true);
 904		synchronized (this.messageList) {
 905			final Message first = conversation.getFirstUnreadMessage();
 906			final int bottom = Math.max(0, this.messageList.size() - 1);
 907			final int pos;
 908			if (first == null) {
 909				pos = bottom;
 910			} else {
 911				int i = getIndexOf(first.getUuid(), this.messageList);
 912				pos = i < 0 ? bottom : i;
 913			}
 914			messagesView.setSelection(pos);
 915			return pos == bottom;
 916		}
 917	}
 918
 919	private OnClickListener mEnableAccountListener = new OnClickListener() {
 920		@Override
 921		public void onClick(View v) {
 922			final Account account = conversation == null ? null : conversation.getAccount();
 923			if (account != null) {
 924				account.setOption(Account.OPTION_DISABLED, false);
 925				activity.xmppConnectionService.updateAccount(account);
 926			}
 927		}
 928	};
 929
 930	private OnClickListener mUnblockClickListener = new OnClickListener() {
 931		@Override
 932		public void onClick(final View v) {
 933			v.post(new Runnable() {
 934				@Override
 935				public void run() {
 936					v.setVisibility(View.INVISIBLE);
 937				}
 938			});
 939			if (conversation.isDomainBlocked()) {
 940				BlockContactDialog.show(activity, conversation);
 941			} else {
 942				activity.unblockConversation(conversation);
 943			}
 944		}
 945	};
 946
 947	private OnClickListener mBlockClickListener = new OnClickListener() {
 948		@Override
 949		public void onClick(final View view) {
 950			final Jid jid = conversation.getJid();
 951			if (jid.isDomainJid()) {
 952				BlockContactDialog.show(activity, conversation);
 953			} else {
 954				PopupMenu popupMenu = new PopupMenu(activity, view);
 955				popupMenu.inflate(R.menu.block);
 956				popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
 957					@Override
 958					public boolean onMenuItemClick(MenuItem menuItem) {
 959						Blockable blockable;
 960						switch (menuItem.getItemId()) {
 961							case R.id.block_domain:
 962								blockable = conversation.getAccount().getRoster().getContact(jid.toDomainJid());
 963								break;
 964							default:
 965								blockable = conversation;
 966						}
 967						BlockContactDialog.show(activity, blockable);
 968						return true;
 969					}
 970				});
 971				popupMenu.show();
 972			}
 973		}
 974	};
 975
 976	private OnClickListener mAddBackClickListener = new OnClickListener() {
 977
 978		@Override
 979		public void onClick(View v) {
 980			final Contact contact = conversation == null ? null : conversation.getContact();
 981			if (contact != null) {
 982				activity.xmppConnectionService.createContact(contact);
 983				activity.switchToContactDetails(contact);
 984			}
 985		}
 986	};
 987
 988	private OnClickListener mAllowPresenceSubscription = new OnClickListener() {
 989		@Override
 990		public void onClick(View v) {
 991			final Contact contact = conversation == null ? null : conversation.getContact();
 992			if (contact != null) {
 993				activity.xmppConnectionService.sendPresencePacket(contact.getAccount(),
 994						activity.xmppConnectionService.getPresenceGenerator()
 995								.sendPresenceUpdatesTo(contact));
 996				hideSnackbar();
 997			}
 998		}
 999	};
1000
1001	private OnClickListener mAnswerSmpClickListener = new OnClickListener() {
1002		@Override
1003		public void onClick(View view) {
1004			Intent intent = new Intent(activity, VerifyOTRActivity.class);
1005			intent.setAction(VerifyOTRActivity.ACTION_VERIFY_CONTACT);
1006			intent.putExtra("contact", conversation.getContact().getJid().toBareJid().toString());
1007			intent.putExtra(VerifyOTRActivity.EXTRA_ACCOUNT, conversation.getAccount().getJid().toBareJid().toString());
1008			intent.putExtra("mode", VerifyOTRActivity.MODE_ANSWER_QUESTION);
1009			startActivity(intent);
1010		}
1011	};
1012
1013	private void updateSnackBar(final Conversation conversation) {
1014		final Account account = conversation.getAccount();
1015		final XmppConnection connection = account.getXmppConnection();
1016		final int mode = conversation.getMode();
1017		final Contact contact = mode == Conversation.MODE_SINGLE ? conversation.getContact() : null;
1018		if (account.getStatus() == Account.State.DISABLED) {
1019			showSnackbar(R.string.this_account_is_disabled, R.string.enable, this.mEnableAccountListener);
1020		} else if (conversation.isBlocked()) {
1021			showSnackbar(R.string.contact_blocked, R.string.unblock, this.mUnblockClickListener);
1022		} else if (contact != null && !contact.showInRoster() && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1023			showSnackbar(R.string.contact_added_you, R.string.add_back, this.mAddBackClickListener);
1024		} else if (contact != null && contact.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1025			showSnackbar(R.string.contact_asks_for_presence_subscription, R.string.allow, this.mAllowPresenceSubscription);
1026		} else if (mode == Conversation.MODE_MULTI
1027				&& !conversation.getMucOptions().online()
1028				&& account.getStatus() == Account.State.ONLINE) {
1029			switch (conversation.getMucOptions().getError()) {
1030				case NICK_IN_USE:
1031					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
1032					break;
1033				case NO_RESPONSE:
1034					showSnackbar(R.string.joining_conference, 0, null);
1035					break;
1036				case SERVER_NOT_FOUND:
1037					showSnackbar(R.string.remote_server_not_found,R.string.leave, leaveMuc);
1038					break;
1039				case PASSWORD_REQUIRED:
1040					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
1041					break;
1042				case BANNED:
1043					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
1044					break;
1045				case MEMBERS_ONLY:
1046					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
1047					break;
1048				case KICKED:
1049					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
1050					break;
1051				case UNKNOWN:
1052					showSnackbar(R.string.conference_unknown_error, R.string.join, joinMuc);
1053					break;
1054				case SHUTDOWN:
1055					showSnackbar(R.string.conference_shutdown, R.string.join, joinMuc);
1056					break;
1057				default:
1058					break;
1059			}
1060		} else if (account.hasPendingPgpIntent(conversation)) {
1061			showSnackbar(R.string.openpgp_messages_found, R.string.decrypt, clickToDecryptListener);
1062		} else if (mode == Conversation.MODE_SINGLE
1063				&& conversation.smpRequested()) {
1064			showSnackbar(R.string.smp_requested, R.string.verify, this.mAnswerSmpClickListener);
1065		} else if (mode == Conversation.MODE_SINGLE
1066				&& conversation.hasValidOtrSession()
1067				&& (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED)
1068				&& (!conversation.isOtrFingerprintVerified())) {
1069			showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify, clickToVerify);
1070		} else if (connection != null
1071				&& connection.getFeatures().blocking()
1072				&& conversation.countMessages() != 0
1073				&& !conversation.isBlocked()
1074				&& conversation.isWithStranger()) {
1075			showSnackbar(R.string.received_message_from_stranger,R.string.block, mBlockClickListener);
1076		} else {
1077			hideSnackbar();
1078		}
1079	}
1080
1081	public void updateMessages() {
1082		synchronized (this.messageList) {
1083			if (getView() == null) {
1084				return;
1085			}
1086			final ConversationActivity activity = (ConversationActivity) getActivity();
1087			if (this.conversation != null) {
1088				conversation.populateWithMessages(ConversationFragment.this.messageList);
1089				updateSnackBar(conversation);
1090				updateStatusMessages();
1091				this.messageListAdapter.notifyDataSetChanged();
1092				updateChatMsgHint();
1093				if (!activity.isConversationsOverviewVisable() || !activity.isConversationsOverviewHideable()) {
1094					activity.sendReadMarkerIfNecessary(conversation);
1095				}
1096				this.updateSendButton();
1097			}
1098		}
1099	}
1100
1101	protected void messageSent() {
1102		mSendingPgpMessage.set(false);
1103		mEditMessage.setText("");
1104		if (conversation.setCorrectingMessage(null)) {
1105			mEditMessage.append(conversation.getDraftMessage());
1106			conversation.setDraftMessage(null);
1107		}
1108		updateChatMsgHint();
1109		new Handler().post(new Runnable() {
1110			@Override
1111			public void run() {
1112				int size = messageList.size();
1113				messagesView.setSelection(size - 1);
1114			}
1115		});
1116	}
1117
1118	public void setFocusOnInputField() {
1119		mEditMessage.requestFocus();
1120	}
1121
1122	public void doneSendingPgpMessage() {
1123		mSendingPgpMessage.set(false);
1124	}
1125
1126	enum SendButtonAction {TEXT, TAKE_PHOTO, SEND_LOCATION, RECORD_VOICE, CANCEL, CHOOSE_PICTURE}
1127
1128	private int getSendButtonImageResource(SendButtonAction action, Presence.Status status) {
1129		switch (action) {
1130			case TEXT:
1131				switch (status) {
1132					case CHAT:
1133					case ONLINE:
1134						return R.drawable.ic_send_text_online;
1135					case AWAY:
1136						return R.drawable.ic_send_text_away;
1137					case XA:
1138					case DND:
1139						return R.drawable.ic_send_text_dnd;
1140					default:
1141						return activity.getThemeResource(R.attr.ic_send_text_offline, R.drawable.ic_send_text_offline);
1142				}
1143			case TAKE_PHOTO:
1144				switch (status) {
1145					case CHAT:
1146					case ONLINE:
1147						return R.drawable.ic_send_photo_online;
1148					case AWAY:
1149						return R.drawable.ic_send_photo_away;
1150					case XA:
1151					case DND:
1152						return R.drawable.ic_send_photo_dnd;
1153					default:
1154						return activity.getThemeResource(R.attr.ic_send_photo_offline, R.drawable.ic_send_photo_offline);
1155				}
1156			case RECORD_VOICE:
1157				switch (status) {
1158					case CHAT:
1159					case ONLINE:
1160						return R.drawable.ic_send_voice_online;
1161					case AWAY:
1162						return R.drawable.ic_send_voice_away;
1163					case XA:
1164					case DND:
1165						return R.drawable.ic_send_voice_dnd;
1166					default:
1167						return activity.getThemeResource(R.attr.ic_send_voice_offline, R.drawable.ic_send_voice_offline);
1168				}
1169			case SEND_LOCATION:
1170				switch (status) {
1171					case CHAT:
1172					case ONLINE:
1173						return R.drawable.ic_send_location_online;
1174					case AWAY:
1175						return R.drawable.ic_send_location_away;
1176					case XA:
1177					case DND:
1178						return R.drawable.ic_send_location_dnd;
1179					default:
1180						return activity.getThemeResource(R.attr.ic_send_location_offline, R.drawable.ic_send_location_offline);
1181				}
1182			case CANCEL:
1183				switch (status) {
1184					case CHAT:
1185					case ONLINE:
1186						return R.drawable.ic_send_cancel_online;
1187					case AWAY:
1188						return R.drawable.ic_send_cancel_away;
1189					case XA:
1190					case DND:
1191						return R.drawable.ic_send_cancel_dnd;
1192					default:
1193						return activity.getThemeResource(R.attr.ic_send_cancel_offline, R.drawable.ic_send_cancel_offline);
1194				}
1195			case CHOOSE_PICTURE:
1196				switch (status) {
1197					case CHAT:
1198					case ONLINE:
1199						return R.drawable.ic_send_picture_online;
1200					case AWAY:
1201						return R.drawable.ic_send_picture_away;
1202					case XA:
1203					case DND:
1204						return R.drawable.ic_send_picture_dnd;
1205					default:
1206						return activity.getThemeResource(R.attr.ic_send_picture_offline, R.drawable.ic_send_picture_offline);
1207				}
1208		}
1209		return activity.getThemeResource(R.attr.ic_send_text_offline, R.drawable.ic_send_text_offline);
1210	}
1211
1212	public void updateSendButton() {
1213		final Conversation c = this.conversation;
1214		final SendButtonAction action;
1215		final Presence.Status status;
1216		final String text = this.mEditMessage == null ? "" : this.mEditMessage.getText().toString();
1217		final boolean empty = text.length() == 0;
1218		final boolean conference = c.getMode() == Conversation.MODE_MULTI;
1219		if (c.getCorrectingMessage() != null && (empty || text.equals(c.getCorrectingMessage().getBody()))) {
1220			action = SendButtonAction.CANCEL;
1221		} else if (conference && !c.getAccount().httpUploadAvailable()) {
1222			if (empty && c.getNextCounterpart() != null) {
1223				action = SendButtonAction.CANCEL;
1224			} else {
1225				action = SendButtonAction.TEXT;
1226			}
1227		} else {
1228			if (empty) {
1229				if (conference && c.getNextCounterpart() != null) {
1230					action = SendButtonAction.CANCEL;
1231				} else {
1232					String setting = activity.getPreferences().getString("quick_action", "recent");
1233					if (!setting.equals("none") && UIHelper.receivedLocationQuestion(conversation.getLatestMessage())) {
1234						setting = "location";
1235					} else if (setting.equals("recent")) {
1236						setting = activity.getPreferences().getString("recently_used_quick_action", "text");
1237					}
1238					switch (setting) {
1239						case "photo":
1240							action = SendButtonAction.TAKE_PHOTO;
1241							break;
1242						case "location":
1243							action = SendButtonAction.SEND_LOCATION;
1244							break;
1245						case "voice":
1246							action = SendButtonAction.RECORD_VOICE;
1247							break;
1248						case "picture":
1249							action = SendButtonAction.CHOOSE_PICTURE;
1250							break;
1251						default:
1252							action = SendButtonAction.TEXT;
1253							break;
1254					}
1255				}
1256			} else {
1257				action = SendButtonAction.TEXT;
1258			}
1259		}
1260		if (activity.useSendButtonToIndicateStatus() && c != null
1261				&& c.getAccount().getStatus() == Account.State.ONLINE) {
1262			if (c.getMode() == Conversation.MODE_SINGLE) {
1263				status = c.getContact().getShownStatus();
1264			} else {
1265				status = c.getMucOptions().online() ? Presence.Status.ONLINE : Presence.Status.OFFLINE;
1266			}
1267		} else {
1268			status = Presence.Status.OFFLINE;
1269		}
1270		this.mSendButton.setTag(action);
1271		this.mSendButton.setImageResource(getSendButtonImageResource(action, status));
1272	}
1273
1274	protected void updateStatusMessages() {
1275		synchronized (this.messageList) {
1276			if (showLoadMoreMessages(conversation)) {
1277				this.messageList.add(0, Message.createLoadMoreMessage(conversation));
1278			}
1279			if (conversation.getMode() == Conversation.MODE_SINGLE) {
1280				ChatState state = conversation.getIncomingChatState();
1281				if (state == ChatState.COMPOSING) {
1282					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_is_typing, conversation.getName())));
1283				} else if (state == ChatState.PAUSED) {
1284					this.messageList.add(Message.createStatusMessage(conversation, getString(R.string.contact_has_stopped_typing, conversation.getName())));
1285				} else {
1286					for (int i = this.messageList.size() - 1; i >= 0; --i) {
1287						if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
1288							return;
1289						} else {
1290							if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
1291								this.messageList.add(i + 1,
1292										Message.createStatusMessage(conversation, getString(R.string.contact_has_read_up_to_this_point, conversation.getName())));
1293								return;
1294							}
1295						}
1296					}
1297				}
1298			} else {
1299				ChatState state = ChatState.COMPOSING;
1300				List<MucOptions.User> users = conversation.getMucOptions().getUsersWithChatState(state,5);
1301				if (users.size() == 0) {
1302					state = ChatState.PAUSED;
1303					users = conversation.getMucOptions().getUsersWithChatState(state, 5);
1304
1305				}
1306				if (users.size() > 0) {
1307					Message statusMessage;
1308					if (users.size() == 1) {
1309						MucOptions.User user = users.get(0);
1310						int id = state == ChatState.COMPOSING ? R.string.contact_is_typing : R.string.contact_has_stopped_typing;
1311						statusMessage = Message.createStatusMessage(conversation, getString(id, UIHelper.getDisplayName(user)));
1312						statusMessage.setTrueCounterpart(user.getRealJid());
1313						statusMessage.setCounterpart(user.getFullJid());
1314					} else {
1315						StringBuilder builder = new StringBuilder();
1316						for(MucOptions.User user : users) {
1317							if (builder.length() != 0) {
1318								builder.append(", ");
1319							}
1320							builder.append(UIHelper.getDisplayName(user));
1321						}
1322						int id = state == ChatState.COMPOSING ? R.string.contacts_are_typing : R.string.contacts_have_stopped_typing;
1323						statusMessage = Message.createStatusMessage(conversation, getString(id, builder.toString()));
1324					}
1325					this.messageList.add(statusMessage);
1326				}
1327
1328			}
1329		}
1330	}
1331
1332	private boolean showLoadMoreMessages(final Conversation c) {
1333		final boolean mam = hasMamSupport(c);
1334		final MessageArchiveService service = activity.xmppConnectionService.getMessageArchiveService();
1335		return mam && (c.getLastClearHistory() != 0  || (c.countMessages() == 0 && c.messagesLoaded.get() && c.hasMessagesLeftOnServer()  && !service.queryInProgress(c)));
1336	}
1337
1338	private boolean hasMamSupport(final Conversation c) {
1339		if (c.getMode() == Conversation.MODE_SINGLE) {
1340			final XmppConnection connection = c.getAccount().getXmppConnection();
1341			return connection != null && connection.getFeatures().mam();
1342		} else {
1343			return c.getMucOptions().mamSupport();
1344		}
1345	}
1346
1347	protected void showSnackbar(final int message, final int action, final OnClickListener clickListener) {
1348		snackbar.setVisibility(View.VISIBLE);
1349		snackbar.setOnClickListener(null);
1350		snackbarMessage.setText(message);
1351		snackbarMessage.setOnClickListener(null);
1352		snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
1353		if (action != 0) {
1354			snackbarAction.setText(action);
1355		}
1356		snackbarAction.setOnClickListener(clickListener);
1357	}
1358
1359	protected void hideSnackbar() {
1360		snackbar.setVisibility(View.GONE);
1361	}
1362
1363	protected void sendPlainTextMessage(Message message) {
1364		ConversationActivity activity = (ConversationActivity) getActivity();
1365		activity.xmppConnectionService.sendMessage(message);
1366		messageSent();
1367	}
1368
1369	private AtomicBoolean mSendingPgpMessage = new AtomicBoolean(false);
1370
1371	protected void sendPgpMessage(final Message message) {
1372		final ConversationActivity activity = (ConversationActivity) getActivity();
1373		final XmppConnectionService xmppService = activity.xmppConnectionService;
1374		final Contact contact = message.getConversation().getContact();
1375		if (!activity.hasPgp()) {
1376			activity.showInstallPgpDialog();
1377			return;
1378		}
1379		if (conversation.getAccount().getPgpSignature() == null) {
1380			activity.announcePgp(conversation.getAccount(), conversation, activity.onOpenPGPKeyPublished);
1381			return;
1382		}
1383		if (!mSendingPgpMessage.compareAndSet(false,true)) {
1384			Log.d(Config.LOGTAG,"sending pgp message already in progress");
1385		}
1386		if (conversation.getMode() == Conversation.MODE_SINGLE) {
1387			if (contact.getPgpKeyId() != 0) {
1388				xmppService.getPgpEngine().hasKey(contact,
1389						new UiCallback<Contact>() {
1390
1391							@Override
1392							public void userInputRequried(PendingIntent pi,
1393														  Contact contact) {
1394								activity.runIntent(
1395										pi,
1396										ConversationActivity.REQUEST_ENCRYPT_MESSAGE);
1397							}
1398
1399							@Override
1400							public void success(Contact contact) {
1401								activity.encryptTextMessage(message);
1402							}
1403
1404							@Override
1405							public void error(int error, Contact contact) {
1406								activity.runOnUiThread(new Runnable() {
1407									@Override
1408									public void run() {
1409										Toast.makeText(activity,
1410												R.string.unable_to_connect_to_keychain,
1411												Toast.LENGTH_SHORT
1412										).show();
1413									}
1414								});
1415								mSendingPgpMessage.set(false);
1416							}
1417						});
1418
1419			} else {
1420				showNoPGPKeyDialog(false,
1421						new DialogInterface.OnClickListener() {
1422
1423							@Override
1424							public void onClick(DialogInterface dialog,
1425												int which) {
1426								conversation
1427										.setNextEncryption(Message.ENCRYPTION_NONE);
1428								xmppService.updateConversation(conversation);
1429								message.setEncryption(Message.ENCRYPTION_NONE);
1430								xmppService.sendMessage(message);
1431								messageSent();
1432							}
1433						});
1434			}
1435		} else {
1436			if (conversation.getMucOptions().pgpKeysInUse()) {
1437				if (!conversation.getMucOptions().everybodyHasKeys()) {
1438					Toast warning = Toast
1439							.makeText(getActivity(),
1440									R.string.missing_public_keys,
1441									Toast.LENGTH_LONG);
1442					warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
1443					warning.show();
1444				}
1445				activity.encryptTextMessage(message);
1446			} else {
1447				showNoPGPKeyDialog(true,
1448						new DialogInterface.OnClickListener() {
1449
1450							@Override
1451							public void onClick(DialogInterface dialog,
1452												int which) {
1453								conversation
1454										.setNextEncryption(Message.ENCRYPTION_NONE);
1455								message.setEncryption(Message.ENCRYPTION_NONE);
1456								xmppService.updateConversation(conversation);
1457								xmppService.sendMessage(message);
1458								messageSent();
1459							}
1460						});
1461			}
1462		}
1463	}
1464
1465	public void showNoPGPKeyDialog(boolean plural,
1466								   DialogInterface.OnClickListener listener) {
1467		AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
1468		builder.setIconAttribute(android.R.attr.alertDialogIcon);
1469		if (plural) {
1470			builder.setTitle(getString(R.string.no_pgp_keys));
1471			builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
1472		} else {
1473			builder.setTitle(getString(R.string.no_pgp_key));
1474			builder.setMessage(getText(R.string.contact_has_no_pgp_key));
1475		}
1476		builder.setNegativeButton(getString(R.string.cancel), null);
1477		builder.setPositiveButton(getString(R.string.send_unencrypted),
1478				listener);
1479		builder.create().show();
1480	}
1481
1482	protected void sendAxolotlMessage(final Message message) {
1483		final ConversationActivity activity = (ConversationActivity) getActivity();
1484		final XmppConnectionService xmppService = activity.xmppConnectionService;
1485		xmppService.sendMessage(message);
1486		messageSent();
1487	}
1488
1489	protected void sendOtrMessage(final Message message) {
1490		final ConversationActivity activity = (ConversationActivity) getActivity();
1491		final XmppConnectionService xmppService = activity.xmppConnectionService;
1492		activity.selectPresence(message.getConversation(),
1493				new OnPresenceSelected() {
1494
1495					@Override
1496					public void onPresenceSelected() {
1497						message.setCounterpart(conversation.getNextCounterpart());
1498						xmppService.sendMessage(message);
1499						messageSent();
1500					}
1501				});
1502	}
1503
1504	public void appendText(String text) {
1505		if (text == null) {
1506			return;
1507		}
1508		String previous = this.mEditMessage.getText().toString();
1509		if (previous.length() != 0 && !previous.endsWith(" ")) {
1510			text = " " + text;
1511		}
1512		this.mEditMessage.append(text);
1513	}
1514
1515	@Override
1516	public boolean onEnterPressed() {
1517		if (activity.enterIsSend()) {
1518			sendMessage();
1519			return true;
1520		} else {
1521			return false;
1522		}
1523	}
1524
1525	@Override
1526	public void onTypingStarted() {
1527		Account.State status = conversation.getAccount().getStatus();
1528		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.COMPOSING)) {
1529			activity.xmppConnectionService.sendChatState(conversation);
1530		}
1531		activity.hideConversationsOverview();
1532		updateSendButton();
1533	}
1534
1535	@Override
1536	public void onTypingStopped() {
1537		Account.State status = conversation.getAccount().getStatus();
1538		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(ChatState.PAUSED)) {
1539			activity.xmppConnectionService.sendChatState(conversation);
1540		}
1541	}
1542
1543	@Override
1544	public void onTextDeleted() {
1545		Account.State status = conversation.getAccount().getStatus();
1546		if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1547			activity.xmppConnectionService.sendChatState(conversation);
1548		}
1549		updateSendButton();
1550	}
1551
1552	@Override
1553	public void onTextChanged() {
1554		if (conversation != null && conversation.getCorrectingMessage() != null) {
1555			updateSendButton();
1556		}
1557	}
1558
1559	private int completionIndex = 0;
1560	private int lastCompletionLength = 0;
1561	private String incomplete;
1562	private int lastCompletionCursor;
1563	private boolean firstWord = false;
1564
1565	@Override
1566	public boolean onTabPressed(boolean repeated) {
1567		if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
1568			return false;
1569		}
1570		if (repeated) {
1571			completionIndex++;
1572		} else {
1573			lastCompletionLength = 0;
1574			completionIndex = 0;
1575			final String content = mEditMessage.getText().toString();
1576			lastCompletionCursor = mEditMessage.getSelectionEnd();
1577			int start = lastCompletionCursor > 0 ? content.lastIndexOf(" ",lastCompletionCursor-1) + 1 : 0;
1578			firstWord = start == 0;
1579			incomplete = content.substring(start,lastCompletionCursor);
1580		}
1581		List<String> completions = new ArrayList<>();
1582		for(MucOptions.User user : conversation.getMucOptions().getUsers()) {
1583			String name = user.getName();
1584			if (name != null && name.startsWith(incomplete)) {
1585				completions.add(name+(firstWord ? ": " : " "));
1586			}
1587		}
1588		Collections.sort(completions);
1589		if (completions.size() > completionIndex) {
1590			String completion = completions.get(completionIndex).substring(incomplete.length());
1591			mEditMessage.getEditableText().delete(lastCompletionCursor,lastCompletionCursor + lastCompletionLength);
1592			mEditMessage.getEditableText().insert(lastCompletionCursor, completion);
1593			lastCompletionLength = completion.length();
1594		} else {
1595			completionIndex = -1;
1596			mEditMessage.getEditableText().delete(lastCompletionCursor,lastCompletionCursor + lastCompletionLength);
1597			lastCompletionLength = 0;
1598		}
1599		return true;
1600	}
1601
1602	@Override
1603	public void onActivityResult(int requestCode, int resultCode,
1604	                                final Intent data) {
1605		if (resultCode == Activity.RESULT_OK) {
1606			if (requestCode == ConversationActivity.REQUEST_DECRYPT_PGP) {
1607				activity.getSelectedConversation().getAccount().getPgpDecryptionService().continueDecryption(true);
1608			} else if (requestCode == ConversationActivity.REQUEST_TRUST_KEYS_TEXT) {
1609				final String body = mEditMessage.getText().toString();
1610				Message message = new Message(conversation, body, conversation.getNextEncryption());
1611				sendAxolotlMessage(message);
1612			} else if (requestCode == ConversationActivity.REQUEST_TRUST_KEYS_MENU) {
1613				int choice = data.getIntExtra("choice", ConversationActivity.ATTACHMENT_CHOICE_INVALID);
1614				activity.selectPresenceToAttachFile(choice, conversation.getNextEncryption());
1615			}
1616		}
1617	}
1618
1619}